Leukocyte TNFR1 and TNFR2 Expression Contributes to the Peripheral Immune Response in Cases with Ischemic Stroke
| Autor: | Jonna Skov Madsen, Helle Hvilsted Nielsen, Kate Lykke Lambertsen, Niala Nawaz, Cathrine Charlotte Heiede Laursen, Arne Møller, Rikke Birk Hansen, Matilda Degn, Christina Kruuse |
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| Rok vydání: | 2021 |
| Předmět: |
Male
Neutrophils Receptors CCR2 tumor necrosis factor receptor Inflammation Severity of Illness Index Article apoplexy Leukocyte Count Immune system Neurofilament Proteins Modified Rankin Scale Glial Fibrillary Acidic Protein Leukocytes medicine Humans Receptors Tumor Necrosis Factor Type II cardiovascular diseases Receptor lcsh:QH301-705.5 Stroke Aged Ischemic Stroke Interleukin-6 business.industry Monocyte Immunity General Medicine Middle Aged respiratory system medicine.disease stroke Peripheral Treatment Outcome medicine.anatomical_structure lcsh:Biology (General) Receptors Tumor Necrosis Factor Type I inflammation Case-Control Studies Immunology Intercellular Signaling Peptides and Proteins Female Tumor necrosis factor receptor 1 medicine.symptom monocytes business |
| Zdroj: | Hansen, R B, Laursen, C C H, Nawaz, N, Madsen, J S, Nielsen, H H, Kruuse, C, Møller, A, Degn, M & Lambertsen, K L 2021, ' Leukocyte TNFR1 and TNFR2 Expression Contributes to the Peripheral Immune Response in Cases with Ischemic Stroke ', Cells, vol. 10, no. 4, 861 . https://doi.org/10.3390/cells10040861 Cells Hansen, R B, Laursen, C C H, Nawaz, N, Madsen, J S, Nielsen, H H, Kruuse, C, Møller, A, Degn, M & Lambertsen, K L 2021, ' Leukocyte TNFR1 and TNFR2 expression contributes to the peripheral immune response in cases with ischemic stroke ', Cells, vol. 10, no. 4, 861 . https://doi.org/10.3390/cells10040861 Cells, Vol 10, Iss 861, p 861 (2021) Volume 10 Issue 4 |
| ISSN: | 2073-4409 |
| Popis: | Tumor necrosis factor receptor 1 and 2 (TNFR1 and TNFR2) have been found in brain parenchyma of stroke patients, and plasma levels are increased in the acute phase of stroke. We evaluated associations between TNFR1 and TNFR2 plasma levels and stroke severity, infarct size, and functional outcome. Furthermore, we examined cellular expression of TNFR1 and TNFR2 on leukocyte subpopulations to explore the origin of the increased receptor levels. Blood samples were taken from 33 acute ischemic stroke patients and 10 healthy controls. TNFR1 and TNFR2 plasma concentrations were measured and correlated against the Scandinavian Stroke Scale at admission, infarct volume, and the modified Rankin Scale score three months after stroke onset. Classical, intermediate, and non-classical monocytes as well as neutrophils were purified, and cellular expression of TNFR1 and TNFR2 was examined using flow cytometry. TNFR1 and TNFR2 plasma levels were both increased after ischemic stroke, but we found no correlation with patient outcome measurements. Compared to healthy controls, ischemic stroke patients had decreased non-classical monocyte and neutrophil populations expressing TNFR1 and increased neutrophils expressing TNFR2, and decreased non-classical populations co-expressing both TNFR1 and TNFR2. This study supports the hypothesis of an acute immunological response orchestrated by the peripheral immune system following an ischemic stroke. However, the origin of the increased TNFR1 and TNFR2 plasma levels could not be clearly linked to peripheral monocytes or neutrophils. Future studies are needed and will help clarify the potential role as treatment target. |
| Databáze: | OpenAIRE |
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